Preheat oven to 350 degrees.,Brown beef well, then drain.,Saute onion in 1 tbs. butter until clear.,Combine beef, onion, and remaining ingredients in large sauce pan. Simmer for 20 minutes.,______,Pour sauce over spaghetti. Mix together and bake at 350 for 30 to 45 minutes before serving.,Top with parmesan cheese and chow mein noodles. Serve with rye bread (because when you taste it, it will make sense.).,Enjoy!